boost gauge


blk_srt
02-05-2007, 08:02 PM
Basically I put in an autometer 30/30 mechanical gauge today and it reads a max of 10psi but my stock gauge read closer to 15-17. I have it hooked up to the stock lines and it reads vac correctly and seats at 0 but only goes up to 10. This is the second gauge that I've tried so I know its not the gauge. Any ideas whats going on? Should I just run a new line out to the motor?

Turbodog97
02-05-2007, 09:29 PM
Wait, so you have tried other gauges and it still only reads 10psi tops? I wouldn't trust the stocker when it comes down to it...How is the car pulling? Does it "feel" like only 10lbs? You must have a decent sized boost leak somewhere.

blk_srt
02-05-2007, 09:34 PM
Well the first guage acted weird like it never went to 0 when the car was off but I messed around with the vac line on the back of the gauge and it seemed to change. The car pulls decent, but I have a hard time believing the stock gauge is off that far. On DAB setting 0 on the stock gague was 7psi and its still 7psi on this gauge but like I said it seems like the needle gets stuck at 10psi. I'm thinking it might have something to do with the vac line and maybe I should run an all new one

Turbodog97
02-05-2007, 10:02 PM
If the gauge reads anything besides "0" at any point in time then somethings up.

blk_srt
02-05-2007, 10:09 PM
well this gauge seems to be fine except for the fact its reading low boost. I'm thinking that its a problem in the line but its weird that the gauges read 7-10psi different

Turbodog97
02-05-2007, 10:47 PM
If I remember correctly you can bypass the factory lines and "T" into the line comming off of the tb.

blk_srt
02-05-2007, 10:48 PM
Do you just plug the line or where can you block it off

Turbodog97
02-06-2007, 09:39 AM
Do you just plug the line or where can you block it off


oh ya that's right, you are still using the stock vacuum lines right?

blk_srt
02-06-2007, 02:27 PM
as far as the boost gauge yes but not under the hood

Turbodog97
02-06-2007, 10:56 PM
I'm referring to your under hood lines. Have you bypassed the solenoids?

blk_srt
02-07-2007, 02:30 PM
yes, all but one

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